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Head to head · 2026

Lunabot vs Merlin

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Lunabot

One AI assistant, five models (GPT-4o, Gemini, Claude, Mistral, Ollama), working identically across browser, mobile, desktop,…

3.5Free

Visit Lunabot (opens Lunabot in a new tab)

Merlin

Browser AI assistant that brings ChatGPT, Claude, and other models to any website with one shortcut

4.0$15/mo

Visit Merlin (opens Merlin in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: Lunabot does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    Merlin

    3.5 against 4.0

  • Same job?

    Yes

    Both are Productivity tools

Side by side

Compared onLunabotMerlin
Our rating3.54.0Better
Starts atFree$15/mo
Free planYesYes
CategoryProductivityProductivity
PlansFree
  • Free$0
  • Pro$29/mo, or $19/mo billed yearly ($228/yr)
  • Teams$19 per seat/mo, or $15 billed yearly ($180/yr); 2-seat minimum
Key features
  • Multi-model support (GPT-4o, Gemini, Claude, Mistral, Ollama)
  • Genuine cross-platform sync (browser, mobile, desktop, Telegram, Siri)
  • Chat with Memory across sessions
  • Custom AI Commands for specific workflows
  • Voice input/output and document chat without downloads
  • Ctrl/Cmd+M shortcut for AI access on any website
  • Access to GPT-4, Claude 3 Opus, Gemini, DeepSeek, and Mistral Large from one interface
  • Dedicated summarization for YouTube videos, PDFs, and articles
  • Native buttons inside Gmail, LinkedIn, and X for drafting content
  • Image generation across 20-plus models and aspect ratios
Pros
  • Unusually wide platform coverage (including Telegram and Siri) under one subscription
  • Multi-model access avoids single-provider lock-in
  • No separate API key or ChatGPT account required to get started
  • Free tier's 102 daily queries is generous enough for real evaluation before paying
  • Single subscription replaces separate ChatGPT Plus, Claude Pro, and Gemini subscriptions
  • Native integration inside Gmail and LinkedIn saves switching tabs constantly
Cons
  • Top-tier features (Gemini Pro, image generation) require the $19.99/month Super plan
  • Free tier is positioned for occasional use only, not regular reliance
  • Breadth of platform integrations adds setup steps versus a single-app tool
  • 'Unlimited fair access' marketing overstates a Pro plan that's actually credit-capped
  • Real usage cap (around $100 of model cost) isn't disclosed upfront in plan marketing
  • Browser-extension dependence means no dedicated mobile app experience
CompanyLunabotFoyer, founded 2021

Prices come from each vendor's pricing page, last checked 20260826. Check the vendor before you buy.

FAQ

Questions people ask

Is Lunabot better than Merlin?

In our reviews Lunabot scores 3.5 and Merlin scores 4.0. The better pick depends on the job. Lunabot: One AI assistant, five models (GPT-4o, Gemini, Claude, Mistral, Ollama), working identically across browser, mobile, desktop, Telegram and even Siri - no separate API key or ChatGPT account needed. Merlin: Browser AI assistant that brings ChatGPT, Claude, and other models to any website with one shortcut.

Which is cheaper, Lunabot or Merlin?

Lunabot: free. Merlin: from $15/mo.

Do Lunabot and Merlin have free plans?

Yes, both have a free plan.

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